NASA Connect Video containing six segments as described below. NASA Connect segment explaining how scientists determined the distance between the earth and the sun. The video also explores the geometric technique called parallax. NASA Connect segment involving students in a classroom activity that uses graphing, measurement, and ratios to construct a scaled model of the Solar System. NASA Connect segment exploring what it means to scale and why scientists use scale models and drawings. The video also explores math terms that are associated with scale models and drawings. NASA Connect segment that explores how astronomers and scientists use astronomical units in measuring distances in the Solar System. NASA Connect segment that challenges students to participate in an activity to scale the universe. The video involves students in a proposal to determine a new baseline distance to use for an astronomical unit. NASA Connect segment that explains the Venus Transit and compares it to a solar eclipse.

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